BIO 242 chapter 27 part 1

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what is the bulbospongiosus muscle for

ejaculation

what is the external end of the ejaculatory duct

enter urethra by 2 openings within the prostate

what is the sequence of the male duct system

epididymus, ductus deferens, ejaculatory duct, urethra

what kind of tissue and muscle is in the penis

erectile tissue with smooth muscle

when hot, the scrotum is...

flaccid and lower

What is at the distal end of corpus spongiosum

glans

What is the superior aspect of the testis

head of epididymis

where is the tunica vaginalis located?

inner layer of the abdominal wall

The corpus cavernousa branches from which artery

internal iliac artery

what does the ductus deferens do

joins the duct of seminal vesicle to form the ejaculatory duct

what secretes testosterone into the blood

leydig cells

Describe the temperature of the scrotum

lower than core body temperature for sperm production

what are two functions of the bulbourethral glands

lubricateing glands of corpus spongiosum secretion during sexual arousal

where is the ejaculatory duct located

mainly within the prostate

what are the three (4) functions of the epididymus

motility, storage of sperm cells, and expelling into ductus deferens during ejaculation (and provide nutrients)

what are the two functions of the prostate

nourish sperm and secretion during ejaculation

What are the three male reproductive glands

paired seminal glands (seminal vesicles prostate paired bulbo-urethral glands

the _________________ releases ____________ in smooth muscles of the artery

parasympathetic nervous system, nitric oxide

What is the tunica vaginalis derived from?

parietal peritoneum

where is the ductus defers located

passes through spermatic cord to pelvic cavity, between epididymus and ejaculatory duct

name four functions of the seminal glands

produce 70% of semen nourish sperm by fructose prolong lifespan of sperm by the alkaline secretion secretion during ejaculation

What is the exocrine function of the testis

produce sperm in to epididymus (seminiferous tubules)

what is the endocrine function of the testis

produce testosterone into blood (interstitial endocrine cells)

what encircles the urethra just inferior to the bladder

prostate

What forms the ejaculatory duct

seminal glands and ductus deferns

What is the internal end of the ejaculatory duct formed by

seminal vesicle and vas deferens

where is the epididymus located

between the testis and ductus deferens

What causes erection

blood congestion

why does blood never go into seminiferous tubules

blood-testis barrier

what is the posterolateral area of testis

body and tail of epididymus

what muscle surrounds the bulb

bulbospongiosus mucle

where are the bulbourethral glands located

close to the bulb of the corpus spongiosum

Describe the scrotum

contains paired testes

what is the ejaculatory duct's function

contribute to ejaculation of semen

which part of the penis is found on the dorsal side

corpus cavernosa

which part of the penis is the main erectile body

corpus cavernosa

What part of the penis does the urethra go through

corpus spongiosum

Which part of the penis is found on the ventral side

corpus spongiosum

which part of the penis expands to form glands anteriorly?

corpus spongiosum

what are sertoli cells made from

simple columnar epithelium

What all passes through the male urethra

sperm and urine (but not at the same time)

what produces gametes

sperm in the testes

what are germ cells made from

stratified epithelium

what does the tunica albunginea separate

testis interiorly into lobules (makes them white)

Where does the scrotum originate from?

the abdominal wall

What is at the proximal end of the corpus spongiosum

the bulb

what has an opening to the urethra

the prostate and bulbourethral glands

what is the spermatic cord homologous to in the female

the round ligament

What is the purpose of the male duct system

to carry sperm outside from testes

what is the fibrous capsule working as septa

tunica albuginea

where is the tunica albunginea located

under the vaginalis

what does the spermatic cord enclose

vas deferns, nerve fibers, blood vessels, and lymphatics that supply testis

when cold, the scrotum is...

wrinkled and higher

what is the spermatic cords origin

abdominal wall

the testes secrete this steroid sex hormone

androgens

What is the spermatic cord's inclusion

arteries and veins, lymphatic vessels, nerve fibers, and vas deferens

what are the bulbourethral glands homologous to in females

bartholins glands

What are the three parts of the penis

2 corpus cavernosa and 1 corpus spongiosum

What are at the end of the corpus cavernousa and anchor the penis to the pubic arch?

Crus (Crura)


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